A University of Virginia student spent a night and good part of the next day in jail after seven plain-clothes agents from the state’s Alcoholic Beverage Control division ambushed her.

The student, 20-year-old Elizabeth Daly, made the mistake of walking to her car with bottled water, cookie dough and ice cream in a dark supermarket parking lot near the UVA campus, reports The Daily Progress.

The seven agents sprung aggressively into action, suspecting that the student was carrying was a 12-pack of beer. She was actually carrying a sky-blue carton of LaCroix sparkling water.

Police admit that one of the high-strung agents vaulted onto the hood of Daly’s car. She contends that one of them also drew a gun.

It’s not clear what about Daly’s appearance gave the lawmen (and one law woman) the belief that they had probable cause to confront her en masse.